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The facts: Ensulizole is not banned worldwide, but some health agencies have flagged concerns. We can't tell you whether it's safe for your pregnancy — that's a conversation for your OB-GYN or midwife. What we can do is show you the regulatory facts and flag Ensulizole on any product's label so you can decide with your provider. Commonly found in: Clinique City Block Purifying Charcoal Detox Moisturizer SPF 25, L'Oreal Paris UV Perfect Sunscreen, Neutrogena Clear Face Sunscreen SPF 30.
TL;DR: Ensulizole is allowed in the EU and allowed in the US. Here's what to know if you're pregnant.
| EU status | Allowed |
|---|---|
| US status | Allowed |
| Risk level (regulatory) | low |
| Where it shows up | Clinique City Block Purifying Charcoal Detox Moisturizer SPF 25, L'Oreal Paris UV Perfect Sunscreen, Neutrogena Clear Face Sunscreen SPF 30 |
Ensulizole (INCI: Phenylbenzimidazole Sulfonic Acid) is a water-soluble UVB-absorbing chemical sunscreen active. Because it is water-based, it provides a lighter, less oily feel compared to oil-soluble UV filters.
Used in lightweight UVB-protective formulas, often as part of a two-filter broad-spectrum system (combined with a UVA filter like avobenzone). Popular in facial moisturizers with SPF due to its non-greasy texture.
Ensulizole is approved by the FDA at up to 4% and in the EU at up to 8%. It is water-soluble and less likely to cause sensitivity reactions than oil-soluble filters. Minimal systemic absorption is documented. No established carcinogenicity or endocrine disruption. As with other UV filters, phototoxicity and photocontact dermatitis are very rare possibilities.
For educational use only. This page summarizes the regulatory status of Ensulizole with citations to the primary sources below. It is not medical advice and is not pregnancy-specific medical guidance. Consult your OB-GYN or midwife for decisions about your pregnancy.
Ensulizole is not currently banned worldwide, though some agencies have flagged concerns. See the sources below.
That's a decision for you and your OB-GYN or midwife — we don't give medical advice. What we can tell you is the regulatory status above. Many people choose to limit additives during pregnancy out of caution; bring this page and its sources to your next appointment.
Commonly found in Clinique City Block Purifying Charcoal Detox Moisturizer SPF 25, L'Oreal Paris UV Perfect Sunscreen, Neutrogena Clear Face Sunscreen SPF 30. Scan any product's barcode to check its label for Ensulizole.
Octisalate (octyl salicylate) as another water-compatible UVB-only filter. See the pregnancy-conscious swaps below.
Scan any product's barcode and instantly see if it contains Ensulizole or other ingredients restricted overseas.
Scan a product free →Our scores are never influenced by brands. Last updated 6/11/2026.
Audited products that don't contain Ensulizole.
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